Patents by Inventor Mehmet Z. Sengun

Mehmet Z. Sengun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9451953
    Abstract: Various exemplary methods and devices are provided for improved surgical sutures, suture systems, and methods for suturing. In general, the sutures, suture systems, and methods can allow a suture to form a secure, closed loop without tying a knot. The suture can include a barbed portion configured to be threaded through a hollow portion. The barbed portion can have a plurality of barbs thereon, which can grasp onto an inner wall of the hollow portion when disposed therein to help secure the loop at a desired size. The barbs can all be oriented in one direction that corresponds to a direction of movement of the suture when the loop is being tightened. Thus, the barbs can be configured to allow for a size of the loop to be easily reduced to any desired size to approximate tissue, but can be configured to resist subsequent expansion of the loop to ensure that the tissue remains in place.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: September 27, 2016
    Assignee: DePuy Mitek, LLC
    Inventor: Mehmet Z. Sengun
  • Patent number: 9421082
    Abstract: Methods and devices are provided for preparing and implanting tissue scaffolds. Various embodiments of scribing tools are provided that are configured to mark one or more predetermined shapes around a defect site in tissue. The shape or shapes marked in tissue can be used to cut a tissue scaffold having a shape that matches the shape or shapes marked in tissue. In one embodiment, the scribing tool used to mark a shape in tissue can also be used to cut the tissue scaffold.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: August 23, 2016
    Assignee: DEPUY MITEK, LLC
    Inventors: Mehmet Z. Sengun, Kristian DiMatteo
  • Patent number: 9387067
    Abstract: Methods and devices are provided for anchoring graft to bone. In one exemplary embodiment, a bone cavity is created in bone, a graft is partially advanced into the bone cavity, and a hardenable filler material is inserted into the cavity. The hardenable filler material can change from a viscous first state to a harder second state, compressing the graft against the walls of the bone cavity and thereby anchoring the graft within the cavity. The hardenable filler material can be inserted in an open sac, a closed sac, other carriers or housings, or directly into the bone cavity.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: July 12, 2016
    Assignee: DEPUY MITEK, LLC
    Inventors: Mehmet Z. Sengun, Eduard Grinberg, Michael S. Varieur, Dennis M. Burke
  • Publication number: 20160175088
    Abstract: Systems and methods for preparing a ligament graft construct for a ligament reconstruction or repair procedure are provided. In general, the described techniques utilize a reinforcement material having at least one suture tail extending therefrom. The reinforcement material is a ribbon or a ribbon-like flattened portion attached to or integrally formed with the at least one suture tail. To prepare a tissue repair construct, the reinforcement material is positioned on a first surface of a graft to extend from an end thereof and the at least one suture tail, coupled to a needle, is repeatedly passed through the reinforcement material and the surface of the graft to a second surface of the graft, and around a side portion of the graft to thereby create multiple suture loops. The tissue repair construct can be formed on each end of the graft.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 23, 2016
    Applicant: DePuy Mitek, LLC
    Inventor: Mehmet Z. Sengun
  • Publication number: 20160166246
    Abstract: Methods and devices are provided for anchoring suture to bone. In one embodiment, an elongate weave of fibers can be provided having a first portion with a first pick count and a second portion with a second pick count that is greater than the first pick count. The first portion can have a cross-section that deforms in response to a force that is applied thereto. The first portion can have a collapsible diameter and can have a bending stiffness that is lower than a bending stiffness of the second portion of the suture. The first portion can also have a first pattern that is different than a second pattern on the second portion of the suture. The first portion can be threaded into a suture anchor such that it can be doubled over upon itself. The present invention also provides exemplary sutures and drivers that can be used with the various methods and devices disclosed herein, or with other methods and devices known in the art.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 16, 2016
    Inventors: Mehmet Z. Sengun, Gary McAlister, Gregory R. Whittaker, David B. Spenciner
  • Publication number: 20160113644
    Abstract: Methods and devices are provided for anchoring a ligament or tendon to bone. In particular, various delivery tools, including a variety of sheath inserter tools, are provided. The tools can be used to position a tendon within a prepared bone hole, and to deliver a sheath into the bone hole.
    Type: Application
    Filed: January 30, 2015
    Publication date: April 28, 2016
    Inventors: David R. Diduch, Mark H. Getelman, Jacob A. Marks, Gerome Miller, Matthew J. Ravenscroft, Mehmet Z. Sengun, Howard C. Tang
  • Publication number: 20160113757
    Abstract: Methods and devices are provided for anchoring a ligament or tendon to bone. In one embodiment, a surgical implant is provided having a sheath and an expander that is received within the sheath. Various delivery tools, including a sheath inserter and a driver, are also provided. In use, the sheath inserter can be used to position a tendon within a prepared bone hole, and it can be used to deliver the sheath with a guidewire coupled thereto into the bone hole. The driver can be provided for delivering the expander into the sheath. A loader can optionally be used to load the driver and expander onto the guidewire coupled to the implanted sheath.
    Type: Application
    Filed: January 30, 2015
    Publication date: April 28, 2016
    Inventors: David R. Diduch, Mark H. Getelman, Gerome Miller, Jacob A. Marks, Matthew J. Ravenscroft, Mehmet Z. Sengun, Howard C. Tang, Gregory R. Whittaker
  • Publication number: 20160113643
    Abstract: Methods and devices are provided for anchoring a ligament or tendon to bone. In one embodiment, a surgical implant is provided having a sheath and an expander that is received within the sheath. Various delivery tools, including a sheath inserter and a driver, are also provided. In use, the sheath inserter can be used to position a tendon within a prepared bone hole, and it can be used to deliver the sheath with a guidewire coupled thereto into the bone hole. The driver can be provided for delivering the expander into the sheath. A loader can optionally be used to load the driver and expander onto the guidewire coupled to the implanted sheath.
    Type: Application
    Filed: January 30, 2015
    Publication date: April 28, 2016
    Inventors: David R. Diduch, Mark H. Getelman, Jacob A. Marks, Gerome Miller, Matthew J. Ravenscroft, Mehmet Z. Sengun, Howard C. Tang, Gregory R. Whittaker
  • Publication number: 20160113758
    Abstract: Various bone anchor assemblies and methods are provided for anchoring tissue to bone. In one embodiment, an anchor assembly for anchoring a tendon to bone is provided and includes a substantially cylindrical sheath having bone-engaging surface features formed on an external surface thereof, and having an inner lumen formed therein and extending from an open proximal end to a substantially closed distal. The substantially closed distal end includes at least one tendon anchoring feature extending distally therefrom and configured to facilitate anchoring of a tendon to bone. The anchor assembly further includes an expander having a generally elongate cylindrical configuration and being sized and shaped to be received within the inner lumen of the sheath.
    Type: Application
    Filed: January 30, 2015
    Publication date: April 28, 2016
    Inventors: David R. Diduch, Mark H. Getelman, James J. Mahoney, JR., Jacob A. Marks, Gerome Miller, Matthew J. Ravenscroft, Mehmet Z. Sengun, Howard C. Tang, Paul P. Weitzel, Gregory R. Whittaker
  • Publication number: 20160113756
    Abstract: Methods and devices are provided for anchoring a ligament or tendon to bone. In one embodiment, a surgical implant is provided having a sheath and an expander that is received within the sheath. Various delivery tools, including a sheath inserter and a driver, are also provided. In use, the sheath inserter can be used to position a tendon within a prepared bone hole, and it can be used to deliver the sheath with a guidewire coupled thereto into the bone hole. The driver can be provided for delivering the expander into the sheath. A loader can optionally be used to load the driver and expander onto the guidewire coupled to the implanted sheath.
    Type: Application
    Filed: January 30, 2015
    Publication date: April 28, 2016
    Inventors: David R. Diduch, Mark H. Getelman, Jacob A. Marks, Gerome Miller, Matthew J. Ravenscroft, Mehmet Z. Sengun, Howard C. Tang, Paul P. Weitzel, Gregory R. Whittaker
  • Publication number: 20160095590
    Abstract: Methods and devices are provided for securing tissue to bone. In general, a suture leader can have leading and trailing ends, and an inner passageway configured to receive a strand of suture therein. More specifically, the trailing end of the leader can be configured to receive the strand of suture therein to form an overlapping region of suture leader and suture. When the suture is positioned in the leader, an outer diameter of the leading end of the leader can be less than an outer diameter of the over lapping region. The leader can have a lower bending stiffness than the suture so that the leader can be more easily folded into a bend. In certain aspects, the suture leader can be formed from a substantially flexible, braided material so that the leader can be configured to contract when a pulling force is applied to the leader. In another embodiment, the suture leader can have a pre-formed crease configured to mate with a threading tool.
    Type: Application
    Filed: December 11, 2015
    Publication date: April 7, 2016
    Inventors: Mehmet Z. Sengun, David B. Spenciner
  • Publication number: 20160045196
    Abstract: Various devices, systems, and methods are provided for securing soft tissue to bone. In one exemplary embodiment, a two-piece inserter tool is provided that includes a tip portion that is configured to be removably coupled to a handle portion. A distal portion of the tip portion can be configured to be coupled to a suture anchor, and the tip portion and the anchor can be passed through a continuous suture loop prior to mating the tip portion to the handle portion.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: Mehmet Z. Sengun, Joseph Hernandez, Gerome Miller
  • Patent number: 9247936
    Abstract: Methods and devices are provided for securing tissue to bone. In general, a suture leader can have leading and trailing ends, and an inner passageway configured to receive a strand of suture therein. More specifically, the trailing end of the leader can be configured to receive the strand of suture therein to form an overlapping region of suture leader and suture. When the suture is positioned in the leader, an outer diameter of the leading end of the leader can be less than an outer diameter of the over lapping region. The leader can have a lower bending stiffness than the suture so that the leader can be more easily folded into a bend. In certain aspects, the suture leader can be formed from a substantially flexible, braided material so that the leader can be configured to contract when a pulling force is applied to the leader. In another embodiment, the suture leader can have a pre-formed crease configured to mate with a threading tool.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: February 2, 2016
    Assignee: MEDOS INTERNATIONAL SARL
    Inventors: Mehmet Z. Sengun, David B. Spenciner
  • Patent number: 9237888
    Abstract: Methods and devices are provided for anchoring suture to bone. In one embodiment, an elongate weave of fibers can be provided having a first portion with a first pick count and a second portion with a second pick count that is greater than the first pick count. The first portion can have a cross-section that deforms in response to a force that is applied thereto. The first portion can have a collapsible diameter and can have a bending stiffness that is lower than a bending stiffness of the second portion of the suture. The first portion can also have a first pattern that is different than a second pattern on the second portion of the suture. The first portion can be threaded into a suture anchor such that it can be doubled over upon itself. The present invention also provides exemplary sutures and drivers that can be used with the various methods and devices disclosed herein, or with other methods and devices known in the art.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: January 19, 2016
    Assignee: MEDOS INTERNATIONAL SARL
    Inventors: Mehmet Z. Sengun, Gary McAlister, Gregory R. Whittaker, David B. Spenciner
  • Publication number: 20160008123
    Abstract: Systems and methods for preparing a ligament graft for a ligament reconstruction procedure are provided. In general, the described techniques utilize a graft preparation system having a holder and a delivery suture assembly removably coupled thereto. The delivery suture assembly can include a spine coupled with an anchor suture configured to form a self-tightening knot used to position the assembly around a graft and a plurality of suture windings configured to be affixed to the graft when the assembly is deployed. The assembly is delivered to the graft using the holder and the sutures can be affixed to the graft without penetrating therethrough. The spine helps to evenly distribute the load among the windings compressing the graft which are thus are capable of withstanding increased loads. Thus, an improved, simplified, and time- and labor-saving approach to preparing ligament grafts is provided.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 14, 2016
    Inventors: Scott A. Woodruff, Mehmet Z. Sengun
  • Patent number: 9226759
    Abstract: Low profile reamers and methods of use are provided which can, in general, allow a hole to be drilled in bone. In one embodiment, a low profile retractable bone reamer is provided having an elongate shaft with a cutting element disposed on a distal end of the elongate shaft that can be configured to drill a hole in bone. The elongate shaft and cutting element can have first and second longitudinally separated portions that are movably coupled to each other. The reamer can be configured to move between a retracted configuration, in which a the reamer has a reduced, low profile configuration, and a non-retracted configuration, in which both longitudinally separated portions of the cutting element can be positioned adjacent to one another to form a single cutting element.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: January 5, 2016
    Assignee: DePuy Mitek, LLC
    Inventors: Gregory R. Whittaker, Mehmet Z. Sengun, Kristian Dimatteo
  • Publication number: 20150351931
    Abstract: Methods and devices are provided for delivering and affixing tissue replacements. In one embodiment, a tissue scaffold can be delivered into a patient through a cannula to a cavity formed at a defect site in tissue, e.g., cartilage. A delivery shaft can be used to deliver the scaffold through the cannula, and a loading device can help load the scaffold onto the delivery shaft. A delivery guide device can position and temporarily hold the scaffold within the cavity. The delivery guide device can guide one or more surgical instruments to the scaffold to affix the scaffold within the cavity, e.g., to bone underlying the scaffold, using at least one securing mechanism.
    Type: Application
    Filed: August 18, 2015
    Publication date: December 10, 2015
    Inventors: Mehmet Z. Sengun, Kristian Dimatteo
  • Patent number: 9198650
    Abstract: Various devices, systems, and methods are provided for securing soft tissue to bone. In one exemplary embodiment, a two-piece inserter tool is provided that includes a tip portion that is configured to be removably coupled to a handle portion. A distal portion of the tip portion can be configured to be coupled to a suture anchor, and the tip portion and the anchor can be passed through a continuous suture loop prior to mating the tip portion to the handle portion.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 1, 2015
    Assignee: MEDOS INTERNATIONAL SARL
    Inventors: Mehmet Z. Sengun, Joseph Hernandez, Gerome Miller
  • Patent number: 9149369
    Abstract: Methods and devices are provided for delivering and affixing tissue replacements. In one embodiment, a tissue scaffold can be delivered into a patient through a cannula to a cavity formed at a defect site in tissue, e.g., cartilage. A delivery shaft can be used to deliver the scaffold through the cannula, and a loading device can help load the scaffold onto the delivery shaft. A delivery guide device can position and temporarily hold the scaffold within the cavity. The delivery guide device can guide one or more surgical instruments to the scaffold to affix the scaffold within the cavity, e.g., to bone underlying the scaffold, using at least one securing mechanism.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: October 6, 2015
    Assignee: DePuy Mitek, LLC
    Inventors: Mehmet Z. Sengun, Kristian Dimatteo
  • Publication number: 20150190164
    Abstract: Systems and methods are provided for passively dissipating a rotational speed of a fluid-driven rotatable shaft. In particular, a dissipation member is provided for dissipating the rotational speed of a shaft having an end effector formed thereon. As the rotational speed of the shaft increases, the dissipation member will apply a counter-torque to the shaft, thereby limiting the rotational speed of the shaft. In an exemplary embodiment, the counter-torque has a non-linear dependence on the rotational speed of the shaft, such that the counter-torque increases at a rate greater than a rate of increase in the rotational speed.
    Type: Application
    Filed: March 20, 2015
    Publication date: July 9, 2015
    Inventors: Kevin J. Ranucci, Mehmet Z. Sengun